package com.bjc.nio;

import java.net.InetSocketAddress;
import java.nio.ByteBuffer;
import java.nio.channels.SocketChannel;

/**
 * @program: nettypro
 * @description:
 * @author: bjc
 * @create: 2021-09-04 21:06
 */
public class NIOClient {

    public static void main(String[] args) throws Exception {
        //得到一个网络通道
        SocketChannel socketChannel = SocketChannel.open();
        //设置非阻塞
        socketChannel.configureBlocking(false);
        //提供服务端的ip和端口
        InetSocketAddress inetSocketAddress = new InetSocketAddress("127.0.0.1", 6666);
        //连接服务器
        if (!socketChannel.connect(inetSocketAddress)){
            while (!socketChannel.finishConnect()){
                System.out.println("因为连接需要事件，客户端不会阻塞，可以做其他事情");
            }
        }
        //如果连接成功，就发送数据
        String str = "Hello World";
        //Wraps a byte array into a buffer.
        ByteBuffer buffer = ByteBuffer.wrap(str.getBytes());
        //发送数据，将buffer数据写入channel
        socketChannel.write(buffer);
        System.in.read();
    }
}
